Au, Ag and Pt are called noble metals. They are unreactive and found in free state.
200) Which metal is found in free state?
Answer is:
Gold
Explanation:
Related Inorganic Chemistry MCQ with Answers
Answer is:
Their surface is not easily wet by water
Explanation:
Ore particles are wet by oil. Hence, they float on the surface.
Answer is:
Aluminium
Explanation:
In this process, a mixture of aluminium powder and ferric oxide in the ratio of 1 : 3 is used.